diff options
Diffstat (limited to 'ich_descriptors.c')
| -rw-r--r-- | ich_descriptors.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/ich_descriptors.c b/ich_descriptors.c index bf47ec09..4ae3a1b8 100644 --- a/ich_descriptors.c +++ b/ich_descriptors.c @@ -1037,6 +1037,23 @@ int read_ich_descriptors_from_dump(const uint32_t *const dump, const size_t len, desc->component.FLILL = dump[(getFCBA(&desc->content) >> 2) + 1]; desc->component.FLPB = dump[(getFCBA(&desc->content) >> 2) + 2]; + /* upper map */ + desc->upper.FLUMAP1 = dump[(UPPER_MAP_OFFSET >> 2) + 0]; + + /* VTL is 8 bits long. Quote from the Ibex Peak SPI programming guide: + * "Identifies the 1s based number of DWORDS contained in the VSCC + * Table. Each SPI component entry in the table is 2 DWORDS long." So + * the maximum of 255 gives us 127.5 SPI components(!?) 8 bytes each. A + * check ensures that the maximum offset actually accessed is available. + */ + if (len < getVTBA(&desc->upper) + (desc->upper.VTL / 2 * 8)) + return ICH_RET_OOB; + + for (i = 0; i < desc->upper.VTL/2; i++) { + desc->upper.vscc_table[i].JID = dump[(getVTBA(&desc->upper) >> 2) + i * 2 + 0]; + desc->upper.vscc_table[i].VSCC = dump[(getVTBA(&desc->upper) >> 2) + i * 2 + 1]; + } + if (*cs == CHIPSET_ICH_UNKNOWN) { *cs = guess_ich_chipset(&desc->content, &desc->component); prettyprint_ich_chipset(*cs); @@ -1056,23 +1073,6 @@ int read_ich_descriptors_from_dump(const uint32_t *const dump, const size_t len, for (i = 0; i < nm; i++) desc->master.FLMSTRs[i] = dump[(getFMBA(&desc->content) >> 2) + i]; - /* upper map */ - desc->upper.FLUMAP1 = dump[(UPPER_MAP_OFFSET >> 2) + 0]; - - /* VTL is 8 bits long. Quote from the Ibex Peak SPI programming guide: - * "Identifies the 1s based number of DWORDS contained in the VSCC - * Table. Each SPI component entry in the table is 2 DWORDS long." So - * the maximum of 255 gives us 127.5 SPI components(!?) 8 bytes each. A - * check ensures that the maximum offset actually accessed is available. - */ - if (len < getVTBA(&desc->upper) + (desc->upper.VTL / 2 * 8)) - return ICH_RET_OOB; - - for (i = 0; i < desc->upper.VTL/2; i++) { - desc->upper.vscc_table[i].JID = dump[(getVTBA(&desc->upper) >> 2) + i * 2 + 0]; - desc->upper.vscc_table[i].VSCC = dump[(getVTBA(&desc->upper) >> 2) + i * 2 + 1]; - } - /* MCH/PROC (aka. North) straps */ if (len < getFMSBA(&desc->content) + desc->content.MSL * 4) return ICH_RET_OOB; |